| 1 | /* |
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| 2 | * This file Copyright (C) 2007 Charles Kerr <charles@rebelbase.com> |
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| 3 | * |
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| 4 | * This file is licensed by the GPL version 2. Works owned by the |
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| 5 | * Transmission project are granted a special exemption to clause 2(b) |
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| 6 | * so that the bulk of its code can remain under the MIT license. |
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| 7 | * This exemption does not extend to derived works not owned by |
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| 8 | * the Transmission project. |
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| 9 | * |
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| 10 | * $Id: peer-mgr-private.h 3949 2007-11-24 04:53:44Z charles $ |
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| 11 | */ |
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| 12 | |
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| 13 | #ifndef TR_PEER_MGR_PRIVATE_H |
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| 14 | #define TR_PEER_MGR_PRIVATE_H |
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| 15 | |
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| 16 | #include <inttypes.h> /* uint16_t */ |
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| 17 | #include <netinet/in.h> /* struct in_addr */ |
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| 18 | #include "publish.h" /* tr_publisher_tag */ |
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| 19 | |
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| 20 | struct tr_bitfield; |
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| 21 | struct tr_peerIo; |
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| 22 | struct tr_peermsgs; |
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| 23 | |
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| 24 | enum |
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| 25 | { |
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| 26 | ENCRYPTION_PREFERENCE_UNKNOWN, |
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| 27 | ENCRYPTION_PREFERENCE_YES, |
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| 28 | ENCRYPTION_PREFERENCE_NO |
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| 29 | }; |
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| 30 | |
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| 31 | /** |
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| 32 | *** The "SWIFT" system is described by Karthik Tamilmani, |
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| 33 | *** Vinay Pai, and Alexander Mohr of Stony Brook University |
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| 34 | *** in their paper "SWIFT: A System With Incentives For Trading" |
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| 35 | *** http://citeseer.ist.psu.edu/tamilmani04swift.html |
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| 36 | *** |
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| 37 | *** More SWIFT constants are defined in peer-mgr.c |
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| 38 | **/ |
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| 39 | |
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| 40 | /** |
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| 41 | * Use SWIFT? |
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| 42 | */ |
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| 43 | static const int SWIFT_ENABLED = 1; |
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| 44 | |
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| 45 | /** |
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| 46 | * For every byte the peer uploads to us, |
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| 47 | * allow them to download this many bytes from us |
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| 48 | */ |
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| 49 | static const double SWIFT_REPAYMENT_RATIO = 1.33; |
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| 50 | |
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| 51 | |
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| 52 | typedef struct tr_peer |
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| 53 | { |
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| 54 | unsigned int peerIsChoked : 1; |
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| 55 | unsigned int peerIsInterested : 1; |
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| 56 | unsigned int clientIsChoked : 1; |
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| 57 | unsigned int clientIsInterested : 1; |
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| 58 | unsigned int doPurge : 1; |
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| 59 | |
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| 60 | tr_peer_status status; |
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| 61 | |
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| 62 | /* number of bad pieces they've contributed to */ |
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| 63 | uint8_t strikes; |
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| 64 | |
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| 65 | uint8_t encryption_preference; |
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| 66 | uint16_t port; |
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| 67 | struct in_addr in_addr; |
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| 68 | struct tr_peerIo * io; |
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| 69 | |
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| 70 | struct tr_bitfield * banned; |
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| 71 | struct tr_bitfield * blame; |
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| 72 | struct tr_bitfield * have; |
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| 73 | float progress; |
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| 74 | |
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| 75 | /* the client name from the `v' string in LTEP's handshake dictionary */ |
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| 76 | char * client; |
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| 77 | |
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| 78 | time_t peerSentPieceDataAt; |
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| 79 | time_t chokeChangedAt; |
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| 80 | time_t pieceDataActivityDate; |
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| 81 | |
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| 82 | struct tr_peermsgs * msgs; |
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| 83 | tr_publisher_tag msgsTag; |
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| 84 | |
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| 85 | struct tr_ratecontrol * rcToClient; |
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| 86 | struct tr_ratecontrol * rcToPeer; |
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| 87 | |
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| 88 | double rateToClient; |
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| 89 | double rateToPeer; |
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| 90 | |
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| 91 | int64_t credit; |
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| 92 | } |
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| 93 | tr_peer; |
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| 94 | |
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| 95 | #endif |
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